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Article
November 8, 1958

ELECTROMYOGRAM IN EVALUATION OF NEUROLOGICAL COMPLICATIONS OF SPINAL ANESTHESIA

Author Affiliations

Los Angeles

From the Department of Electromyography, University of Southern California, and the Los Angeles County Hospital (Dr. Marinacci), and the Division of Nervous Diseases, College of Medical Evangelists, and the Laboratory of Neuropathology, Los Angeles County Hospital (Dr. Courville).

JAMA. 1958;168(10):1337-1345. doi:10.1001/jama.1958.03000100039009
Abstract

Some assume that spinal anesthesia is responsible for the development of any concurrent neurological manifestations. Of 482 patients whose neurological complaints seemed to be related to spinal anesthesia, 478 showed neurological complaints due to some other concurrent and entirely unrelated conditions imitating actual complications of the spinal anesthetic agent. In the majority of instances, the causative disease proves to be either an infectious neuronitis or a peripheral neuropathy. The electromyogram plays a fundamental role in the evaluation of these complications. Differentiation in the two groups of lesions is based on the following two basic elements: (1) the distribution of the denervation, that is, electromyographic changes, and (2) the time in which the denervation activity is first detected electromyographically. The prevention of misunderstanding about spinal anesthesia is of great importance.

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